[Clinical evaluation of a new hand-held impedance audiometer].


In order to evaluate the accuracy and clinical availability of MicroTymp (Welch Allyn) which was new, portable, cordless, and hand-held impedance audiometer, 64 normal subjects and 52 patients with otitis media with effusion were examined by use of MicroTymp and Amplaid 702 (Dana Japan). The types of tympanogram were agreed with each other in 87% of ears… (More)


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